What am I to my husband's grandmother?

Her grandchild-in-law (granddaughter-in-law or grandson-in-law).

What is my husband's grandma to me?

Your husband's grandma is your grandmother-in-law. She is related to you by marriage, not by blood.

Your husband's grandma is your grandmother-in-law. She is related to you by marriage, not by blood.

you them common ancestors double line: marriage

Your husband's grandmother is your grandmother-in-law. Many people just call her grandma.

You are her granddaughter-in-law (or grandson-in-law).

How we worked it out

Follow the chain one step at a time:

…

Tap relatives in order, like mother, cousin, daughter

More: grandchildren, great-, half-, step- and in-laws

Any sex Grandchildren and great- Half Step In-laws

Or type it the way you'd say it

…is what to

I am